/*
Theme Name: IBA Corporate 2026
Description: 株式会社IBA コーポレートサイト（2026リニューアル）
Version: 1.1.0
Author: 株式会社IBA
Text Domain: iba2026
*/

:root{
  --text:#1f2933; --sub:#5f6b76; --line:#e3e7eb; --bg:#ffffff; --bg2:#f4f6f8;
  --main:#1b3a5c; --accent:#e8702a; --accent-l:#fdf1e9;
  --en:"Montserrat",sans-serif; --ja:"Noto Sans JP",sans-serif;
  --gutter:clamp(16px,4vw,40px); --max:1160px; --r:14px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:80px}
body{font-family:var(--ja);color:var(--text);background:var(--bg);line-height:1.9;letter-spacing:.03em;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
ul{list-style:none}
.wrap{max-width:var(--max);margin:0 auto;padding:0 var(--gutter)}
.en{font-family:var(--en)}

/* header */
.hd{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.95);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.hd__in{display:flex;align-items:center;justify-content:space-between;height:72px}
.hd__logo{display:flex;align-items:center;gap:12px;font-weight:700;font-size:15px}
.hd__logo img{height:40px;width:auto}
.hd__nav{display:flex;align-items:center;gap:30px;font-size:14px;font-weight:500}
.hd__nav a:not(.btn):hover{color:var(--accent)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 28px;border-radius:999px;background:var(--accent);color:#fff;font-weight:700;font-size:14px;transition:opacity .2s,transform .2s}
.btn:hover{opacity:.88;transform:translateY(-1px)}
.btn--line{background:#fff;color:var(--main);border:1px solid var(--main)}
.btn--line:hover{background:var(--main);color:#fff;opacity:1}
.hd__toggle{display:none;background:none;border:0;width:44px;height:44px;cursor:pointer;position:relative}
.hd__toggle span{position:absolute;left:10px;right:10px;height:2px;background:var(--text);transition:transform .3s,opacity .3s}
.hd__toggle span:nth-child(1){top:15px}.hd__toggle span:nth-child(2){top:21px}.hd__toggle span:nth-child(3){top:27px}
.is-open .hd__toggle span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.is-open .hd__toggle span:nth-child(2){opacity:0}
.is-open .hd__toggle span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* hero: slideshow */
.hero{position:relative;height:calc(100svh - 72px);max-height:820px;min-height:520px;overflow:hidden;color:#fff;background:#0f1e32}
.hero__slide{position:absolute;inset:0;opacity:0;transition:opacity 1.4s ease}
.hero__slide.is-on{opacity:1}
.hero__slide img{width:100%;height:100%;object-fit:cover;transform:scale(1.08);transition:transform 7s linear}
.hero__slide.is-on img{transform:scale(1)}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(15,30,50,.8) 0%,rgba(15,30,50,.15) 55%,rgba(15,30,50,.25) 100%);pointer-events:none}
.hero__txt{position:absolute;left:0;right:0;bottom:clamp(90px,12vh,130px);z-index:2}
.hero__txt .hero__en{font-family:var(--en);font-size:13px;font-weight:700;letter-spacing:.2em;color:#ffd2b5;margin-bottom:12px}
.hero h1{font-size:clamp(32px,5vw,64px);font-weight:700;line-height:1.4;letter-spacing:.06em;margin-bottom:12px;text-shadow:0 2px 16px rgba(0,0,0,.25)}
.hero__txt p{font-size:clamp(14px,1.4vw,16px);opacity:.92}
.hero__txt .hero__en{opacity:1}
.hero__nav{position:absolute;left:0;right:0;bottom:28px;z-index:2}
.hero__nav ul{display:flex;gap:10px}
.hero__nav li{flex:1;max-width:200px;display:flex}
.hero__nav button{width:100%;background:none;border:0;padding:0;color:#fff;text-align:left;font:inherit;font-size:12px;font-weight:700;opacity:.55;transition:opacity .4s;cursor:pointer}
.hero__nav button::before{content:"";display:block;height:2px;margin-bottom:8px;background:rgba(255,255,255,.35) linear-gradient(#fff,#fff) no-repeat;background-size:0 100%}
.hero__nav button.is-on{opacity:1}
.hero__nav button.is-on::before{animation:herobar 5s linear forwards}
@keyframes herobar{to{background-size:100% 100%}}
@media (max-width:560px){.hero__nav ul{gap:6px}.hero__nav button{font-size:10px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.hero__txt .hero__en{font-size:11px;letter-spacing:.1em;opacity:1}}
@media (prefers-reduced-motion:reduce){.hero__slide img{transition:none;transform:none}.hero__nav button.is-on::before{animation:none;background-size:100% 100%}}

/* news strip */
.strip{margin-top:-1px}
.strip__in{display:flex;align-items:center;gap:24px;padding-top:22px;padding-bottom:22px;border-bottom:1px solid var(--line);font-size:14px}
.strip__label{font-family:var(--en);font-weight:700;color:var(--accent);font-size:13px;letter-spacing:.1em}
.strip time{font-family:var(--en);color:var(--sub)}
.strip a:hover{color:var(--accent)}
.strip__more{margin-left:auto;font-size:13px;color:var(--sub);white-space:nowrap}

/* sections */
.sec{padding:clamp(72px,10vw,120px) 0}
.sec--gray{background:var(--bg2)}
.hgroup{margin-bottom:clamp(36px,5vw,56px)}
.hgroup--c{text-align:center}
.hgroup .en{display:block;font-size:13px;font-weight:700;letter-spacing:.18em;color:var(--accent);margin-bottom:8px}
.hgroup h2{font-size:clamp(26px,3.2vw,36px);font-weight:700;letter-spacing:.06em;line-height:1.5}
.hgroup p{margin-top:14px;color:var(--sub);font-size:15px}

/* about */
.about{display:grid;grid-template-columns:1fr 1fr;gap:clamp(32px,6vw,80px);align-items:center}
.about__img{border-radius:var(--r);overflow:hidden;aspect-ratio:4/3}
.about__img img{width:100%;height:100%;object-fit:cover}
.about__lead{font-size:clamp(20px,2.4vw,26px);font-weight:700;line-height:1.7;margin-bottom:24px;color:var(--main)}
.about p{margin-bottom:1.2em;font-size:15px}
.about__four{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-top:28px}
.about__four li{background:var(--accent-l);color:var(--accent);border-radius:10px;text-align:center;padding:14px 0;font-weight:700}

/* business */
.biz{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.card{background:#fff;border-radius:var(--r);overflow:hidden;display:flex;flex-direction:column;box-shadow:0 2px 10px rgba(20,40,60,.06);transition:transform .25s,box-shadow .25s}
.card:hover{transform:translateY(-4px);box-shadow:0 12px 28px rgba(20,40,60,.12)}
.card__img{aspect-ratio:3/2;overflow:hidden;background:#dfe5ea}
.card__img img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.card:hover .card__img img{transform:scale(1.05)}
.card__ph{width:100%;height:100%;display:grid;place-items:center;color:#9aa6b1;font-size:12px;font-family:var(--en);letter-spacing:.2em}
.card__body{padding:20px 20px 22px;display:flex;flex-direction:column;flex:1}
.card__tag{align-self:flex-start;font-size:11px;font-weight:700;color:var(--main);background:var(--bg2);border-radius:999px;padding:2px 12px;margin-bottom:10px}
.card__name{font-size:17px;font-weight:700;line-height:1.5}
.card__brand{font-family:var(--en);font-size:13px;font-weight:600;color:var(--accent);margin:2px 0 10px}
.card__txt{font-size:13px;line-height:1.8;color:var(--sub);flex:1}
.card__more{margin-top:14px;font-size:13px;font-weight:700;color:var(--main)}
.card__more::after{content:" →";transition:margin .2s}
.card:hover .card__more::after{margin-left:4px}

/* mission */
.mvv{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.mvv__item{border:1px solid var(--line);border-radius:var(--r);padding:32px 28px;background:#fff}
.mvv__k{font-family:var(--en);font-size:22px;font-weight:700;color:var(--main);margin-bottom:4px}
.mvv__ja{font-size:12px;color:var(--accent);font-weight:700;margin-bottom:16px}
.mvv__item p{font-size:14px;color:var(--sub)}
.mvv__vals li{display:flex;gap:14px;padding:8px 0;border-bottom:1px dashed var(--line);font-size:14px;color:var(--sub)}
.mvv__vals li:last-child{border:0}
.mvv__vals b{color:var(--text);flex-shrink:0;white-space:nowrap}

/* company */
.co{display:grid;grid-template-columns:1.2fr 1fr;gap:clamp(32px,5vw,64px)}
.co dl{background:#fff;border-radius:var(--r);padding:8px 28px}
.co dl div{display:grid;grid-template-columns:7.5em 1fr;padding:18px 0;border-bottom:1px solid var(--line);font-size:15px}
.co dl div:last-child{border:0}
.co dt{font-weight:700;color:var(--main)}
.co__map{border-radius:var(--r);overflow:hidden;background:#dfe5ea;height:100%;min-height:340px}
.co__map iframe{width:100%;height:100%;min-height:340px;border:0;display:block}
.co__access{margin-top:12px;font-size:14px;color:var(--sub)}

/* news */
.news li a{display:flex;gap:20px;align-items:center;padding:20px 8px;border-bottom:1px solid var(--line);transition:background .2s}
.news li:first-child a{border-top:1px solid var(--line)}
.news li a:hover{background:var(--bg2)}
.news time{font-family:var(--en);font-size:14px;color:var(--sub);flex-shrink:0}
.news .cat{font-size:11px;font-weight:700;color:#fff;background:var(--main);border-radius:999px;padding:2px 12px;flex-shrink:0}
.news__more{text-align:center;margin-top:36px}

/* cta */
.cta{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.cta a{position:relative;border-radius:var(--r);overflow:hidden;color:#fff;min-height:260px;display:flex;align-items:flex-end;padding:32px}
.cta img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .5s}
.cta a::after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(15,30,50,.75),rgba(15,30,50,.1))}
.cta a:hover img{transform:scale(1.05)}
.cta__in{position:relative;z-index:1}
.cta__in .en{font-size:13px;font-weight:700;letter-spacing:.16em;color:#ffd2b5}
.cta__in h3{font-size:24px;margin:4px 0 6px}
.cta__in p{font-size:14px;opacity:.9}

/* footer */
.ft{background:var(--main);color:#fff;padding:56px 0 24px}
.ft__top{display:flex;justify-content:space-between;gap:32px;flex-wrap:wrap;padding-bottom:36px;border-bottom:1px solid rgba(255,255,255,.15)}
.ft__co{display:flex;gap:16px;align-items:flex-start}
.ft__co img{height:52px;width:auto;border-radius:6px}
.ft__co p{font-size:13px;line-height:1.9;opacity:.85}
.ft__co b{font-size:15px;opacity:1}
.ft__nav{display:flex;flex-wrap:wrap;gap:10px 28px;font-size:14px}
.ft__nav a{opacity:.85}.ft__nav a:hover{opacity:1;text-decoration:underline}
.ft__sns{display:flex;gap:10px;margin-top:18px}
.ft__sns a{width:36px;height:36px;border-radius:50%;background:rgba(255,255,255,.12);display:grid;place-items:center}
.ft__sns a:hover{background:var(--accent)}
.ft__sns svg{width:16px;height:16px;fill:#fff}
.ft__bottom{display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;padding-top:20px;font-size:12px;opacity:.7}

/* reveal */
.rv{opacity:0;transform:translateY(20px);transition:opacity .7s ease,transform .7s ease}
.rv.is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.rv{opacity:1;transform:none}}

/* responsive */
@media (max-width:1020px){.biz{grid-template-columns:repeat(2,1fr)}}
@media (max-width:860px){
  .hd__toggle{display:block}
  .hd__nav{position:fixed;top:72px;left:0;right:0;background:#fff;flex-direction:column;align-items:stretch;gap:0;padding:8px var(--gutter) 24px;border-bottom:1px solid var(--line);box-shadow:0 12px 24px rgba(0,0,0,.08);transform:translateY(-8px);opacity:0;pointer-events:none;transition:opacity .25s,transform .25s}
  .hd__nav a:not(.btn){padding:14px 4px;border-bottom:1px solid var(--line)}
  .hd__nav .btn{margin-top:18px}
  .is-open .hd__nav{opacity:1;transform:none;pointer-events:auto}
  .about,.co,.mvv,.cta{grid-template-columns:1fr}
  .strip__more{display:none}
}
@media (max-width:560px){
  .hd__logo span{display:none}
  .biz{grid-template-columns:1fr}
  .card{flex-direction:row}
  .card__img{width:38%;aspect-ratio:auto;flex-shrink:0}
  .card__body{padding:14px 14px 16px}
  .card__txt{display:none}
  .card__name{font-size:15px}
  .strip__in{flex-wrap:wrap;gap:4px 14px}
  .strip__in a{width:100%}
  .news li a{flex-wrap:wrap;gap:6px 12px}
  .news li a span:last-child{width:100%}
  .co dl{padding:4px 18px}
  .co dl div{grid-template-columns:6em 1fr;font-size:14px}
  .about__four{grid-template-columns:repeat(2,1fr)}
}

/* ---------- WordPress ---------- */
.admin-bar .hd{top:32px}
@media (max-width:782px){.admin-bar .hd{top:46px}}
@media (max-width:860px){.admin-bar .hd__nav{top:calc(72px + 46px)}}
.news-empty{text-align:center;color:var(--sub);padding:24px 0}

/* lower pages */
.page-head{background:var(--bg2);padding:clamp(48px,7vw,80px) 0;text-align:center}
.page-head .en{display:block;font-size:13px;font-weight:700;letter-spacing:.18em;color:var(--accent);margin-bottom:6px}
.page-head h1{font-size:clamp(26px,3.4vw,36px);font-weight:700;letter-spacing:.06em;line-height:1.5}
.page-body{padding:clamp(48px,7vw,88px) 0 clamp(72px,10vw,120px)}
.page-body .wrap{max-width:860px}
.entry{font-size:15px}
.entry>*+*{margin-top:1.4em}
.entry h2{font-size:22px;padding-bottom:10px;border-bottom:2px solid var(--line);margin-top:2.2em}
.entry h3{font-size:18px;padding-left:12px;border-left:4px solid var(--accent);margin-top:2em}
.entry a{color:var(--main);text-decoration:underline}
.entry ul,.entry ol{padding-left:1.4em}
.entry ul{list-style:disc}
.entry img{height:auto;border-radius:8px}
.entry figure{margin:0}
.meta{font-family:var(--en);color:var(--sub);font-size:14px;margin-bottom:24px}
.pager{display:flex;justify-content:space-between;gap:16px;margin-top:56px;padding-top:24px;border-top:1px solid var(--line);font-size:14px}
.pager a{color:var(--main);font-weight:700}
.back{text-align:center;margin-top:48px}

/* recruit */
.rc-lead{font-size:clamp(20px,2.4vw,26px);font-weight:700;color:var(--main);line-height:1.7;margin-bottom:20px}
.rc-jobs{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin:40px 0}
.rc-job{border:1px solid var(--line);border-radius:var(--r);padding:28px}
.rc-job h3{font-size:19px;margin-bottom:4px}
.rc-job .type{display:inline-block;font-size:12px;font-weight:700;color:var(--accent);background:var(--accent-l);border-radius:999px;padding:2px 12px;margin-bottom:12px}
.rc-job p{font-size:14px;color:var(--sub)}
.rc-cta{text-align:center}
@media (max-width:560px){.rc-jobs{grid-template-columns:1fr}}

/* contact form 7 */
.wpcf7 form p{margin-bottom:20px}
.wpcf7 label{font-weight:700;font-size:14px}
.wpcf7 input[type=text],.wpcf7 input[type=email],.wpcf7 input[type=tel],.wpcf7 select,.wpcf7 textarea{width:100%;margin-top:6px;padding:12px 14px;border:1px solid #cfd6dc;border-radius:8px;font:inherit;font-weight:400;background:#fff}
.wpcf7 input:focus,.wpcf7 select:focus,.wpcf7 textarea:focus{outline:2px solid var(--accent);outline-offset:1px;border-color:transparent}
.wpcf7 input[type=submit]{display:block;margin:32px auto 0;padding:14px 56px;border:0;border-radius:999px;background:var(--accent);color:#fff;font:inherit;font-weight:700;cursor:pointer}
.wpcf7 input[type=submit]:hover{opacity:.88}
.wpcf7 .wpcf7-list-item{margin:0 16px 0 0}
.contact-tel{background:var(--bg2);border-radius:var(--r);padding:24px;text-align:center;margin-bottom:40px}
.contact-tel a{font-family:var(--en);font-size:26px;font-weight:700;color:var(--main);text-decoration:none}
.entry .contact__items{list-style:none;padding:0;margin:0}
.contact__item{margin-bottom:22px}
.contact__item-title{font-weight:700;font-size:14px;margin:0 0 6px}
.contact__item-title .req{display:inline-block;margin-left:8px;padding:0 8px;border-radius:4px;background:var(--accent);color:#fff;font-size:11px;line-height:1.8;vertical-align:1px}
.contact__area p{margin:0}
.contact__area label{display:inline-flex;align-items:center;gap:6px;font-weight:400;margin:4px 0}
.contact__area input[type=radio],.contact__check input[type=checkbox]{accent-color:var(--accent);width:18px;height:18px}
.contact__check{text-align:center;margin-top:28px}
.contact__check br{display:none}
.contact__check p{display:flex;justify-content:center;align-items:center;gap:8px}
.wpcf7 .contact__check .wpcf7-list-item{margin:0}
.wpcf7 input[type=submit]:disabled{opacity:.4;cursor:not-allowed}